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Analog Devices Inc./Maxim Integrated MAX11046BECB+T
- Part No.:
- MAX11046BECB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX11046BECB+T.pdf
- Description:
- IC ADC 16BIT SAR 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,593
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Product details
Overview
MAX11046BECB+T from Maxim Integrated is a 16-bit, 8-channel simultaneous-sampling analog-to-digital converter (ADC) with independent track-and-hold per channel, 250ksps throughput per channel, ±5V input range, and 92.3dB SNR at 10kHz - designed for high-precision power-grid protection and multiphase motor control systems.
For engineers reviewing the MAX11046BECB+T datasheet, MAX11046BECB+T pinout, MAX11046BECB+T application, or MAX11046BECB+T equivalent, this page delivers verified package mapping (64-pin TQFP-EP), confirmed timing specs (3µs conversion time, 10ns aperture delay), channel-to-channel matching (100ps T/H skew), internal 4.096V reference, and parallel interface configuration details.
Technical Context
The MAX11046BECB+T implements SAR architecture with eight independent track-and-hold circuits enabling true simultaneous sampling across all channels. It supports both internal clocking and external timing control via CONVST, with bidirectional 16-bit parallel interface operating up to 20MHz.
It features dual-supply operation: 4.75V–5.25V analog supply (AVDD) and flexible 2.7V–5.25V digital supply (DVDD), eliminating level-shifting requirements. Input clamping (±20mA) and overrange protection are integrated, with ±5V full-scale range referenced to internal 4.096V or external 3.0V–4.25V sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 distinct output codes for high dynamic range measurement |
| Sampling Rate | 250ksps per channel - enables real-time waveform capture in 50/60Hz power systems |
| SNR | 92.3dB at 10kHz - ensures >15 effective bits of resolution under typical AC line conditions |
| Aperture Delay | 10ns - guarantees precise time-aligned sampling across all 8 channels |
| Channel Matching | 100ps T/H skew - critical for phase-angle accuracy in multiphase energy metering |
| Reference | Internal 4.096V ±5ppm/°C - provides stable ±5V input range without external reference circuitry |
| Supply Range | AVDD: 4.75–5.25V; DVDD: 2.7–5.25V - allows direct interfacing with 3.3V or 5V host processors |
Pinout & Package
MAX11046BECB+T is housed in a 64-pin TQFP-EP (10mm × 10mm) package with exposed pad connected internally to AGND for thermal management.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7 | Analog Input Terminals | Eight independent, overvoltage-protected inputs accepting ±5V differential or pseudo-differential signals |
| DB0–DB15 | Bidirectional Data Bus | 16-bit parallel interface for reading conversion results or writing configuration registers |
| CONVST | Convert Start Input | Rising-edge-triggered command initiating simultaneous sample-and-hold across all channels |
| EOC | End-of-Conversion Output | Active-low signal indicating completion of conversion cycle; used for interrupt-driven data reads |
| REFIO | Reference I/O | Configurable as internal 4.096V reference output or external reference input (3.0–4.25V) |
| RDC / RDC_SENSE | Reference Decoupling | Dedicated pins for low-noise reference buffer bypass (≥80μF total capacitance to AGND) |
| SHDN | Shutdown Control | Hardware-controlled deep-sleep mode reducing current to 10μA while preserving register state |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Sampling | Eight independent track-and-hold circuits eliminate inter-channel phase error in polyphase systems |
| High Input Impedance | 1GΩ input resistance enables direct connection to high-impedance voltage dividers without buffering |
| Integrated Overrange Protection | ±20mA internal clamps + external resistor allow robust ±7.5V fault tolerance on CHx pins |
| Low Aperture Jitter | 50ps RMS jitter preserves SNR performance in high-frequency spectral analysis applications |
| Flexible Reference Options | Switchable between precision internal 4.096V reference or user-supplied 3.0–4.25V external source |
Applications
| Power-Grid Protection | Multiphase Motor Control |
|---|---|
|
Use Scenario: Real-time monitoring of voltage/current waveforms across three-phase distribution lines to detect faults, harmonics, and transients. IC Role / Device Role / Timing Role: Simultaneous 8-channel acquisition captures synchronized voltage and current samples for phasor calculation and fault classification. Use Value: 100ps channel-to-channel T/H matching ensures sub-degree phase accuracy required by IEC 61850-9-2 and IEEE C37.118 standards. |
Use Scenario: Closed-loop field-oriented control (FOC) of industrial PMSM/induction motors using current and back-EMF feedback. IC Role / Device Role / Timing Role: Simultaneous sampling of three motor phase currents and DC bus voltage enables precise torque ripple suppression. Use Value: 250ksps per channel supports >10kHz PWM carrier frequencies with deterministic latency for fast current loop response. |
| Vibration Analysis | Automatic Test Equipment |
|
Use Scenario: High-fidelity capture of multi-axis accelerometer and strain gauge outputs in predictive maintenance systems. IC Role / Device Role / Timing Role: Simultaneous acquisition across 8 sensor channels preserves phase coherence for FFT-based modal analysis. Use Value: 92.3dB SNR and 92dB SINAD enable detection of low-amplitude mechanical resonances buried in noise floor. |
Use Scenario: Automated functional testing of power electronics modules requiring synchronized voltage, current, and temperature measurements. IC Role / Device Role / Timing Role: Parallel 16-bit interface enables burst-mode data transfer at 20MHz for high-throughput test sequencing. Use Value: Hardware-concurrent sampling eliminates software-induced skew between stimulus and response measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX11046ETN+ | Same 16-bit/8-channel functionality but in 56-pin TQFN (8mm × 8mm); lower thermal resistance, no RDC_SENSE pin | Better suited for space-constrained PCB layouts where thermal dissipation is prioritized over reference sense routing | Select MAX11046ETN+ when board area is limited and reference layout uses single-point RDC decoupling |
| AD7606C-16 | 16-bit, 8-channel, but uses serial LVDS interface; 200ksps max; ±10V input range; integrated PGA and anti-alias filter | Preferred for systems requiring programmable gain, higher input voltage tolerance, or reduced pin count vs. parallel bus | Choose AD7606C-16 when system-level noise immunity, smaller footprint, or variable gain per channel is required |
Compared with MAX11046ETN+, the MAX11046BECB+T offers larger TQFP package for easier rework and includes RDC_SENSE for improved reference stability in high-current layouts; versus AD7606C-16, it provides faster 250ksps throughput and simpler parallel interface but lacks on-chip filtering and PGA.
Availability
MAX11046BECB+T is available at Aetrix Electronics and suitable for power-grid protection, multiphase motor control, and vibration analysis applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX11046BECB+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for industrial, automotive, and communications markets.
The MAX11046BECB+T belongs to Maxim's high-performance simultaneous-sampling ADC family targeting applications demanding phase-coherent multichannel acquisition - especially in energy infrastructure and motion control.
FAQ
What is the maximum sampling rate per channel for the MAX11046BECB+T?
The MAX11046BECB+T achieves 250ksps (kilo-samples per second) per channel with true simultaneous sampling across all eight inputs. This rate is guaranteed over the full -40°C to +85°C operating temperature range and supports real-time analysis of 50/60Hz power systems with oversampling capability. The 3µs conversion time and 10ns aperture delay ensure deterministic timing behavior essential for synchronized acquisition.
Does the MAX11046BECB+T require an external reference, or does it include an internal one?
The MAX11046BECB+T includes a precision internal 4.096V reference with ±5ppm/°C temperature coefficient, enabling immediate ±5V full-scale operation without external components. It also supports external reference inputs from 3.0V to 4.25V via the REFIO pin, allowing users to optimize input range (e.g., ±4.0V to ±5.2V) or improve system-level accuracy using a higher-grade reference. The RDC and RDC_SENSE pins provide dedicated decoupling for reference stability.
How does the MAX11046BECB+T handle overvoltage conditions on its analog inputs?
The MAX11046BECB+T integrates ±20mA input clamps on each CH0–CH7 pin, providing inherent overrange protection up to ±7.5V relative to AGND. When used with a simple external series resistor (e.g., 250Ω), this clamp safely limits fault current during transient overvoltages. This architecture eliminates the need for discrete TVS diodes or op-amp buffers in many industrial sensing applications, simplifying front-end design while maintaining 1GΩ input impedance during normal operation.
What digital interface options does the MAX11046BECB+T support?
The MAX11046BECB+T uses a 20MHz bidirectional 16-bit parallel interface with standard control signals: CS (chip select), RD (read), WR (write), and EOC (end-of-conversion). It supports both memory-mapped and I/O-mapped configurations and allows configuration register writes via DB0–DB3/CR0–CR3. Unlike serial alternatives, this interface enables burst-mode data transfers without protocol overhead, making it ideal for FPGA or microcontroller hosts requiring low-latency access to all eight channel results.
Is the MAX11046BECB+T pin-compatible with other devices in the MAX1104x family?
The MAX11046BECB+T shares identical pinout and footprint with MAX11046ECB+, MAX11046BETN+, and MAX11046ETN+ within the same package type (TQFP-EP), enabling drop-in replacement for grade or thermal variants. However, it is not pin-compatible with 4-channel (MAX11044x) or 6-channel (MAX11045x) variants due to differing channel count and associated pin allocations (e.g., CH4–CH7 are no-connections on smaller variants). Always verify pin function mapping against the specific device's datasheet revision.
MAX11046BECB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 8
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-TQFP-EP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11046BECB+T FAQ
1.How can I place an order for MAX11046BECB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11046BECB+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX11046BECB+T reliable?
The price and inventory of MAX11046BECB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11046BECB+T is usually 5 days.
3.What payment methods are accepted for MAX11046BECB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11046BECB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11046BECB+T?
MAX11046BECB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11046BECB+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX11046BECB+T?
For technical support, including MAX11046BECB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11046BECB+T requirements.
6.How does Aetrix verify that MAX11046BECB+T is sourced from the original manufacturer or authorized distributors?
All MAX11046BECB+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX11046BECB+T meets industry standards.
7.What is the process for return or replacement of MAX11046BECB+T?
All MAX11046BECB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11046BECB+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX11046BECB+T part is unused and in its original packaging.
Return procedure for MAX11046BECB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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